What is the length of side of a square, if the area of square is 441 cm2?
Area of a square = 441 cm2
We know that;
Area of a square = side2
441 = side2
Side = <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> √441 = 21
Therefore, length of side of square is 21 cm.